V4 Baserunner_Z9
Grin V4 Baserunner_Z9, Flat Field-Oriented Waterproof Motor Controller for Battery Enclosures with Z910 Plug. 60V Max and 55A Peak Phase Currents (~30-35A Continuous). No On/Off switch and Unterminated.
The Baserunner_Z9 is a compact field-oriented motor controller and enclosure that fits inside the Hailong and Reention downtube battery cradles. It is compatible with up to 14s (58V) battery packs and is terminated with a Z910 waterproof HiGo motor plug. The V4 Model uses a 9 pin Mains connector, and WP8 Cycle Analyst plug, and a 6 pin HiGo MiniB connector for direct hookup of a PAS sensor.
A computer setup is required to configure this controller to a given motor, and this requires the USB->TTL communications cable if you don't already have one. Full Baserunner Information Page.